Development of apparatus to evaluate cutting resistance of protective fabrics

Abstract

In recent decades, attention has been focused on the design of protective soft fabrics against cutting. The anticipated textiles should shield the wearer's body from threats caused by pointed or sharp-edged objects, such as a knife, sharp blade, or spike. Therefore, as it is of great importance to design slash-resistant fabrics, it is also necessary to have an apparatus that gives the possibility to simulate the conditions of cutting processes of the protective fabric. The main objective of the present work is to develop a new apparatus to test the slash-proof materials used in soft protective armor or gloves. The apparatus can test the material with different cutting angles, different speeds, and various normal forces applied to the sample at the point of contact between the material and the cutting blade, with the capability to change all the parameters affecting the cutting force. This study aims to develop a cutting apparatus to study the cutting mechanism of textile materials with the capability to change all the parameters affecting the cutting force. The cutting angle and cutting speed have a significant effect on the maximum cutting force; however, the latter showed a high decrease of the maximum cutting force.

Evaluation of cutting force of high-performance fibers’ dynamic cutting behaviour

“…When the normal stress exceeds the material shear stress at the point of contact, the blade starts to make a micro-crack on the surface of the filament. The cutting mechanism on the set-up indicates that the filaments will also be subjected to tensile stress and flexing stress, and the failure will take place under the effect of these three stresses [22]. The required total cutting force is equal to the force needed to reach the value of the material’s failure equivalent stress.…”

“…A prototype of the test apparatus was developed [22] to satisfy the requirements for measuring the cutting resistance of the fabric as well as the cutting resistance of the fibers and filament yarns. Figure 1 illustrates the main elements of the set-up.…”

Analysis and prediction of woven fabric design impact on fabric/polymer composite drilling energy

“…Adhesive bonding, mechanical fastening, a combination of bonding and fastening, and mechanical fastening are usually needed to drill the composite plates. The mechanism of yarn cutting during drilling is different from the mechanism of fabric cutting, 29 since the cutting edge of the drill rotates and moves downwards during the drilling of a circular hole. Composite reinforcements can be in various forms such as fibers, fabric, and particles.…”